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atroni [7]
3 years ago
6

Help me please I need to write the number of atoms

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
3 0
Cu is 1 atom Cl is 2 N is 1 and H is 3
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Arrange the following compounds in order of DECREASING boiling points (going from the highest to the lowest):
Gennadij [26K]

Answer:

b

d

a

c

Explanation:

More carbons in longest chain = higher BP

D has a BP of 0.8

A has a BP -0.5

C is the lowest because the more branched it is the lower BP

6 0
3 years ago
0.25 g Al equals how many moles?
Mariulka [41]
0.25 g al should equal around 0.009265594867125 moles

I hope this help

5 0
3 years ago
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Outline four environmental effect of using charcoal as source of fuel in daily life
nika2105 [10]

Answer: The most commonly cited impact is deforestation, i.e., the clearance of forest or woodland. At a small spatial scale this may indeed be the case but on a larger landscape scale charcoal production most frequently results only in forest degradation. The contribution of charcoal to deforestation in the tropics is less than 7%. Charcoal production most frequently results in forest degradation.  Most charcoal areas have the potential for rapid forest recovery.

Explanation:

8 0
3 years ago
How many grams (mass) are in 1.7 moles of Nickel II oxide NiO?
WARRIOR [948]

Answer:

126.99g

Explanation:

NiO has a molar mass of 74.7 g/mol. This means that one mole of nickel (II) oxide has a mass of 74.7 grams. We can use stoichiometry/dimensional analysis to figure out how many grams are in 1.7 moles.

1.7mol NiO (\frac{74.7grams}{1 mole} ) = 126.99g

3 0
3 years ago
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A cheetah is an organism that observes chase and catches its pery what kind of energy is that A mechanicle kenetic to chemical t
Temka [501]

Answer:

C mechanical potential to chemical to mechanical kinetic

Explanation:

When the cheetah observes it prey, it does not move at all and remains still in one place. This is potential energy.

To chase after its prey or to pounce on it, the cheetah would require energy. This is obtained by its body by performing certain chemical activities that generate energy that help it to move.

When the cheetah finally undergoes this, it has enough energy to finally come out of hiding and chase its prey. This is kinetic energy as while doing so, the cheetah is in motion.

Hope it helps.

4 0
3 years ago
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